Well i just got 3 young yoyo loaches , they're only about 2" long , and they almost never move during the day, but 1 of them if he is moving then he is definitely scratching his gills or "flashing". I suspect this is a parasite as there are no white specks to indicate ich. I just would like to know how to treat the parasite b4 it spreads to my other fish. thx u very much!!!

mine neither. Flashing is usually parasites, but sometimes in can be water. Ammonia or acid can make fish itch. I would try a water change followed by an ich med if can find one safe for loaches, because they will often take out similar creature. But you could also try something for "flukes".

yes , the fish are treatable...i would treat the entire tank as the parasites can easily get onto the other fish..there are a number of meds you can treat with...
hmmmmm..vayu....these are yoyo or lohachata loaches...not munkis..

they are the same fish...they changed the scientific name some years ago...you know how scientists are....always fighting amongst each other and trying to outdo each other....
folks also started calling them yo yo because they couldn't pronounce lohachata...